查询词典 biomass

The average fresh weight was 35.22 g per plant, with the above-water part counted 77% and the under-water part 23%. The waterborne part played a key role in the biomass structure. The directly absorbing contents of N and P were 13.05-33.14 kg/(hm2·a) and ?5.62-6.67 kg/(hm2·a), respectively.

研究成果如下：水芹植株的平均鲜量35.22 g，其中水上部分占77%，水下部分占23%，生物量分布主要集中在水上部分；其对N，P的直接吸收分别可以达到13.05～33.14 kg/(hm2·a)和5.62～6.67 kg/(hm2·a)。

The effects of fire on ecosystems are complex, ranging from the reduction or elimination of aboveground biomass t...

火对生态系统的影响是复杂的，范围也很广，从减少地上部分生物量到对地下部分物理性质、化学性质、微生物降解过程和细根系的生长。

An optical model used for grassland assessment is established based on the relationship between vegetation index and aboveground biomass.

通过地上生物量和植被指数间的对应关系，建立草原生产力估产模型。

Species richness was positively correlated with aboveground biomass.

物种丰富度与地上生物量呈显著正相关。

Research on co-firing of biomass with coal:analyse of slagging, fouling , and abrasiveness performances

通过对燃煤电站锅炉受热面积灰结渣和吹灰运行对系统经济性影响的分析，总结出与之相关的经济性指标，建立计算模型，归纳出了电站吹灰经济性综合评价指标。

The biomass of iron bacteria in the BAC filter column was abundant, the number in the top was 7.60×10~3cfu/g. A pure bacterium was obtained through three times separation and purification, and bacterium maybe was Gallionella ferruginea, which was the high efficiency bacterium of removal iron.

宝钢现场的BAC成熟滤柱内铁氧化细菌量丰富，滤柱上部的数目为7.60×10~3cfu/g干炭，分离纯化三次后可得到一株纯菌，该菌可能为嘉氏铁柄杆菌，为除铁的高效菌。

The background survey and tracking survey of artificial reef area in Chenghai Laiwu were carried out before and after reefing in 2003 and 2007, respectively. The results indicated that after the deployment of artificial reefs, the biomass density of fishery resources increased by 25.63 times, which were much higher than before. The resources species was much more abundant; total number increased from 23 to 41, which increased by 0.78 times. The crab resources sharply increased by 1.75 times after artificial reef were deployed. Harpodon nehereus and Portunus sanguinolentus , which did not appeared in background survey, now became the dominant species in tracking survey. There were high diversity indexes in artificial reefs area and control area in tracking survey. In conclusion, the results indicated that the fish-aggregating effect of artificial reef site has improved a lot, and the community structure and the habitat environment have been significantly improved.

摘 要：2003和2007年分别对澄海莱芜人工鱼礁区进行了投礁前的本底调查和投礁后的跟踪调查，结果表明，投礁后礁区海域游泳生物的资源密度明显比投礁前高，增加了25.63倍；礁区海域各类资源种类均比投礁前丰富，总种数由投礁前的23种增加至41种，比投礁前增加了0.78倍，其中，蟹类种数增加最多，增加了1.75倍；在本底调查中没有出现的经济种类龙头鱼 Harpodon nehereus 和红星梭子蟹 Portunus sanguinolentus 在跟踪调查中已成为主要优势种；Shannon-Wienver多样性指数在礁区和对比区均比投礁前有所增加。

By studying the chemical composition and the thermal kinetics characteristics of biomass tar and its distillations, related reference material can be offered to research the use of biomass in energy and chemical industry.

生物质焦油存在高水分、高含氧量、高挥发量、中热值、水分挥发后达到一定温度可以着火燃烧、燃烧后剩余灰分较少的低硫燃料。

Based on reviewing the significations of biomass energy utilization, the current technologies of biomass energy utilization is discussed and analysed.

生物质能的研究开发已成为世界热门课题之一，得到各国政府和科学家的普遍关注。

Tree biomass of 1.5,2.5 and 3.5 years old plantations were 14.5,28.5 and 38.0 t/hm 2 respectively,and the understorey biomass were 2.6,3.4 and 6.3 t/hm 2 respectively.

1.5，2.5和3.5年生林木地上部分生物量分别为14.5，28.5和38.0t／hm2，林下植物地上部分生物分别为2.6、3.4和6.3t／hm2。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。